Cash-register.



.' UNITED OFFICE.

' 1 THOMAS CARROLL, OF DAYTON, OHIO,

ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE NATIONAL CASHREGISTER COMPANY, OF DAYTON, 01-110, A CORPORATION OF OHIO,

(INCORPORATED IN 1906.)

CASH-RE G-ISTER.

No. 864,512. Original application filed June 6, 1903, Serial No. 160,416.

Cwith the registering mechanism of cash registers and has among its objects to provide improved turn-to-zero devices in connection with such registering mechanism; this application being a division of a eo-pending application Serial No. 160,4l6 filed by me on .lune'f, 1903.

With these and incidental objects in view, the invention consists in certain novel features of construction and combinations ofparts. the essential elements of which are set forthin appended claims and a preferred form. of embodiment of which is hereinafter specifically described with reference to the drawings which accompany and form part of this specification.

Of said drawings: Figure 1. represents an enlarged perspective view of the counter. Fig. 2 represents a transverse sectional view through the counter. Fig.' 3 represcntsau enlarged detail side elevation of the full stroke wheel mounted on the main revolution shaft and the eooperati ng devices for the machine and the counter. Fig. 4 represents a detail front elevation partly in section of the counter and its turn-to-zcro devices. Fig. 5 represents a detail view of the counter wheel flash or guard and its cooperating mechanism. Fig. 6 repre sents a detail perspective view of the cam flanges or projections for operating the transfer levers for the counter; and Fig 7 represents a deta view of a part of the turn-to-zcro mechanism.

The general style of machine to which the present improvements are applied is one in which there are a series of setting levers which are first adjusted to the desired position and then the complete operation of the machine is effected by the rotation of a suitable crank handle which imparts a complete. rotation to a inain operating shaft at each operation of the machine whereby to effect the necessary registration determined according to the positions of the setting levers. In this exact type of machine the counter is one which is mounted in a movable frame and by the operation of the machine is given a bodily movement to carry the counter over a series of rack bars which are set to differential positions by the aforesaid setting levers, this general construction and mode of operation being precisely similar to the construction also shown in my Patent No. 751,611 dated February 9, 1904, in which patent it will be seen that registering rack bars are first set up Specification of Letters Patent.

Patented Aug. 2'7, 1 90'7f Divided and this application filed March 31, 1905 Serial No- 253.001.

by means of setting levers and then the counter is given a reciprocatory movement to carry the same over the rack bars and thereby effect the necessary registration.

In the machine shown in the present application the counter as shown in Fig. l is mounted in a frame 29 which has two antifriction rollers 30 upon each end, and this counter frame is itself vertically slidable in a rock frame which is formed with two parallel vertical side arms 32, the inner side of each of which vertical side arms has formed therein a slide way or channel 31 within which run the antifriction rollers 30 of the counter frame, so that the counter may be reciprocatcd vertically in these slide-ways. A transverse shaft 34 passes through bearings formed in the upper ends of the vertical side arms 32 so that the rock frame carrying the counter may swing'about the shaft 34 as a pivot, this limited swinging movement of the rock frame being utilized to carry the counter into and out of mesh with the registering rack, and the vertical reciprocatory movements of the counter itself within the rock frame, being utilized to carry the counter over the registering racks to effect the registration, all as set forth in the application of which this application is a division and also'as set forth in the aforementioned patent. transverse shaft 24 (see Fig. 3) is themain operating shaft which is rotatgdl-iyacrfiilf handle or other suitable means, and from which power is derived to give the counter the above-described movements.

As shown in Fig. 4, each of the first four counter or registering wheels 29, counting from the right, carries a registering pinion 46, which is arranged to engage with the above-mentioned registering racks (not shown) when the counter is carried over said racks in the manner above referred to. Each pinion is secured to the right hand side oi its respective registering wheel, and to the right-hand side of each pinion is secured a thin metal disk 47 of a diameter about equal to that of the registering wheel, and finally to the right side of each dish is secured the ratchet wheel 48. The purpose of the disk 47 is to keep the registering racks properly in engagement with the registering pinion.

Cooperating with the ratchet wheels 48 are the usual spring-pressed retaining pawls 49 to prevent-retrograde movement of the registering wheels. Transfer pawls 50 cooperate with the wheels48 and are pivoted at their lower ends to the rear ends of the transfer levers 51, each of which is pivoted about midway of its length upon a cross-shaft 52 which is supported at its ends in the counter frame. At its front end, each of the pawl The p actuating levers carries an antifriction roller 53. Dur

ing the return movement of the counter,that isthese antifriction rollers contact with the fixed transfer cams 0r projections 54, which are rigidly mounted near the front of the casing of the machine and are arranged in graduated order (see Fig. 6) so that the respective pawl-actuating levers will contact therewith successively and thereby be successively actuated. When so actuated the front ends are swling downward and their rear ends carrying the transfer pawls 50 are swung upward against the tension of the springs 55 which con nect the pawl carrying levers and the trip pawls 56. The latter are, as usual, for the purpose of holding the transfer pawls in their inoperative positions so that nor- :nally they.will not engage the teeth of the ratchet wheels 48 and hence normally will not move the registering wheels, and this despite the fact that all of the pawl carrying levers are successively actuated at each operation of the machine, and carry the pawls with them.

By reference to Fig. 6 it will be seen that the cam projections 54 are inclined so that when the counter frame is in its normal upper position the levers 51 have been depressed sufficiently at their forward ends to cause the transfer pawls to slightly overlap the teeth of the ratchet wheel This is to prevent the transfer pawls falling in back of the ratchet teeth when the trip pawls 56 are operated by th c counter being turned to zero. The trip pawl holds the transfer pawl in incpcrative position by reason of the normal engagement of an arm 5'7 with the outer one of the two notchcs 58 formed on the rear end of the trip pawl. The upper side of said pawl is providcd with an operating nose 59 which 1i s in the path of a. trip pin or projection 60, from which it 'rc sults that when the registering wheel has made a complete revolution, the trip pin will strike the operating nose 59 and thereby swing the rear end of the trip pawl downward against the tension of the spring 55 aha permit the transfer pawl to swing toward the ratchet under l the impulse of a spring 61 until the arm 57 drops into the second or inner notch of the trip pawl. Each spring 61 is connected at its forward end to the counter frame. The tripping action brings the upper opcrating end of the transfer pawl into such position that the transfer pawl will turn the registering wheel of next higher denomination onc notch, when its respective lever 51 is operated. Of course when the counter is reset to Zero while the counter is in normal upper position, each pin (30 will strike its trip pawl 56 to trip the same, but the transfer rawl 50 is at this time r st ing upon the ratchet wheel -18 as ahoveuncntioned, owing to the fact that the rollers 03 art sting upon thc transfer flanges 54, thus abnormally raising the lransfcr pawls 50, and therefore the pawls 50 cannoi spring inward into'position to effect a transfer, and the trip pawls 5o arcfrce to return to latching position as; soon as the pins lit) have passed by the same, so that the transfer pawls 50 will nevertheless remain untrippcd and no transfer will take place on the succeedingopcration of the machine.

The stop pin ($2, one of which is carried by each trahsfer pawl, is for the purpose of preventing said pawl from being inadvcrtcnlly or otherwise thrown entirely out of engagement with the ratchet teeth at the point of the when): upward travel of said pawl which might permit ovcrthron.

The thrce registering wheels on the left hand end of the counter are not actuated directly by the registering racks and receive movement only as it is transmitted to them from the lens-of-dollars rcgisloring wheel. A single pawl actuating lever 51. shown in l ig. I, has pivoted to its rear end a spring pawl or, which has three graduated teeth arranged in a manner wcll known in the art whereby the lluudlcds-of(lollars lcgislcl'lnt! wheel 6-1 is turned one notch whenever the tcns-oi-dollars wheel 65 has made a complete revolution. To this end I employ the usual trip pawl so which ooper-ales with the tripping pin (50 carricdlry lhc lcns-of-dollars registering wheel and with an arm 57 on lhc pawl 13?. The three-lined pawl (33 opcralcs so lhnl when the hundreds of dollars registering wheel has nmdc a ('oniplclc revolution, the thousamfls-oi-drillars registeringwvliocl 66 is turned one notch, and so on. up lhrongh llncapacity of the counter.

As will be seen in Figs. 1 and it, tho l'onulcr shall 1 carrying the aforesaid registering wheels, is oxlcml d at one end through the counter frame and through a slot 32" formed in one of the sidc pieces. slop disk is secured to tho outer end of this shaft. slop pawl 91, pivoted on on-i of the side arms 1 2, cooperates wilh a pin 94, mounted upon the disk Ell). ".ho pawl .ll is limited in ils movements by pin Ell projcci ing from llll same info a recess ill, for iucd in the side bar 32.

The counlcr is, of cou e, tnrncd lo zero when in its upper position, and when in llliH position. lhc pin ll will com-act with lhc slop arm ill, of tho pawl EH, if lhc eonnter shaft is rolalcd, and lhcrchy arrosi the count r wheels in Zero position. This operation will mov t pawl 9i. out of its nornml position against lhc tension of the spring 92, which connects an arm 92 of the pawl lo the counter frame. When the counter is subsequently moved downward during any regular opiu'ntion of the machine, the pin 94 discngagcs from the arm U3 and permits the pawl 9] lo movc hack lo its normal pos tion. After the counter is so loworcd and again raisc'l, the pin 94 will occupy posil ion lo the opposite sidc ol' the arm 93, and the counter shaft will lhns he loclccd against retrograde movomcm.

The disk 90 isl'ormcd with n llal sidc Ell! which, when the counter lnovcs dowi'inau l, passes along a vertical guide or llango 90" formed on one cdgc of one of lilo side arms 32, as shown in l 'ig. lly lhis means the countershafl islockcd againsl any rolal i n cx cpt when it is in normal posilion in which lhc disk Ell) is frpo of the flange 90".

In order to prcvont the crank handle from being started or operated while'the machine is hcing turned to zero, l arrai'lge the nulchinc so thal'the lurnaowcl'o key or wrench must hc inserted through an apcrturc formed in the side frame, in order to engage said key with the notched end of the counter shalt. Betwccn this aperture and the end of the counter shaft, however, is located a pivoted lever 98 which is hung upon the shaft 2]., and is operated as hereinafter described. The front end of his locking lever must therefore be swung down, awayl'rom the key aperture in the frame before the wrench can be fitted to the end of the connter shaft, and when this swinging takes place, the lover is brought directly in front of a locking pin 100 which is carried by a full stroke disk 10! mounted on the shaft 24, as shown in Fig. 3. A spring-pressed pawl 101 cooperates with the disk 1 01 to prevent any retrograde movement of the same in a manner well known in the ill) /turned to zero.

till

key backward, the pin lOl will engage the rear the slot 200 and rock above described device, it

.the lever is formed with a notch ranged to he'opcrated by a art. It resulis'irom this construction, as will be readily understood, that the machine cannot be operated while the counter is being turned to zero.

The aperture 97 is guarded by a movable disk Hi5 (see Figs. 4 and 7) formed with a hub portion lJb which projects into the aperture 97 and iorms a journal for the disk. The disk is limited in its movements b v stop pins l97 which project; through slots lilS formed in the disk. A coil spring 199 is connected to the disk and the main frame to normallydraw the disk into position shown in Fi 7. A radial slot 200 is iormcd in the disk and hub for the passage of a pin 201 mounted on the turnto-zero key (see Fig. 4). Alter the key has been partly inserted it must be turned backwards slightly before its coupling projections 200 can enter and become coupled to the end of the counter shait. in so turning the wall oi.

the disk l95 slightly to the rear. When the key is now forced inrther inward to couple it to the counter shaft. the disk W5 is released and allowed to return to its normal position by the pin 20L passing iree oi the slot 200. The turn-to-zero key must now be given a full revolution from its starting position and then turned a slight additional distance in order to bring the pin 201 into alinemeut with the slot 200, to permit the key to be withdrawn. 1 By means of the is necessary. in turning to zero. to always turn the key a slight distance in excess oi a full reyolut ion. The object oi this construction is to insure a complete. return oi the counter wheels to their zero positions. it will oi course be understood that the counter shaftprovided with the usual groove ior the recepi ion oi the spring-pressed pawis on the counter wheels whereby the shaft when rotated will pick up the counter wheels and carry them with it.

As has been beiore slated. the lever 98 is nonually in a posit ion to prevent the turu-to-7.ero wrench being applied to the end oi the counter shait 45 to turn the. For this purpose the forward end of 295 into which projects an angular arin 296 iorniing part oi a bolt 297. as best shown in Figs. Ci and 5. The bolt 297 may be controlledby any suitable form oi lock mechanism ardctachable key. when the parts are in the position shown in Fig. Ii. the bolt 297 has been thrown downward to pennit the counter to be When the bolt is thrown in this manit is also desirable to expose the counting wheels so irom the saunbefore the counter to Zero.

ner that a reading may be made. counter is turned to zero. The counting wheels are normally concealed by a shutter or plate 298 which projects over a sight aperture 399 through which the counter Wheels may be viewed. The shutter 298 is pivotally connected to one end oi a lever Zitll) which is pivoted upon the main frame as at iiiil and is connected to the bolt 297 bya pin 302. A spring arm 302i is formed on the lever 300 and engages the side oi the shutter 298 to prevent any excessive vibration or rattling oi the shutter during the time thesam is being shiitcd. \\'hen the bolt. 297 is moved downward the lever 300 is rocked on its l'ulcrum and thn hutter 39S moved upward at its out-erend. Alter this end has moved up a certain distance it "contacts with a smtionary pin iili'l on L lbe main frame and thus arrests this end oi the shutter. i As the lever Zillii conttended to coniine the new and desire to secure by comes a iulcruin for the shutter with the result that the opposite end oi the same is then raised until it contacts with the pivot pin 301. The shutter is moved downward in substantially the same manner. its lower edge contacting with stationary lugs 305 mounted on the main frame. These latter lugs 1150 support a suitable transparent guard plate 301i which projects over the {Ll'itl'tllif 299.

\\'bile the ionn oi mechanism here shown and described is admirably adapted to iuliil the objects primarily stated. it is to be understood that it is not ininvention to the one form of embodiment herein disclosed. for it is susceptible of embodiment in various iorms. all coming within the scope oi the claims which follow.

Having thus described my invention, what I claim as Letters Patent is:

1. in a cash register. the combination with a registering mechanism. of an inelosinu' cabinet having a window therein. :l shutter for said window. a lock. a lever operated by said lock and connected to the shutter and a second lever operated by the lock for preventing operation of the regis tering mechanism.

.2. In a cash register, the combination with an operating mechanism including: a counter the shaft of which is arranged to be rotated to turn said counter to zero. of n pivoted lever normally guarding the shaft ug'nlnsi'. the adjustment of a tuin-to-zero key. and means for locking the 0pcrating: mechnnisni by the movement of the lever which exposes the shaft.

2;. in a cash register. the combination with an operating mechanism including; a rotary shaft. of a counter having a turn-to-zero shaft. a lever for preventing access to said luttcr shaft and arranged to lock the rotary shaft when moved into a po ition allowin access to said turn-to-zero shul'l.

4. in a cash register. the combination with an inclosing (:lHillK. or a counter mechanism including a turn-to-zero shaft. :1 tnrn-to-zero key/and means mounted onthe inclosius' casing; for cempellin; the key to make more than a full revolution after being attached to the turn'to-zero Shult'.

in a cash register. casing. of a counter mounted zero shaft. :1 turn-to-zero key. and a spring: member mounted on the casing and arranged to be turned back slightly by the key before the latter can engage the-tin'h-t o-zere shaft and to be then released so as to spring torw urd tind compel more than the full rotation ol'i'he. key

ti. ln :i h register. the combiuationwith un inclosing casing. of a counter monnted th'erehi' :nulhaving a turn-to- '/.ero key, an oscillating: springdevn-e mounted on the cusinn and constructed to compei= more than the full rotation of :1 key in order to permit the insertion and the with drawal oi the key from the casing.

-T. in a cash ieuisiei'. the combination with an operating mechanism. oi a counter including a turn-to-zero shaft, a device ranged to guard the illll'lhtti'yiel'd shaft and to also lock the operating mechanism. a cabinet. having a window for the inspection of the counter, a shutter for said therein including a turn-t0- :wlndow. and means for simultaneously operating the shutter and the guard and locking device.

is. in a cash l't 'ter. the combination with-an iucioslug cu. nu. tormed with a key aperture. ot a counter mounted in id casing: and a movable guard for the. key aperture which must be given a slight movement In permit the insertionotf lhe luru-toanero key. and :1 tnru-to-zero key constructed to engage said movable device and operate the same when inserted. 7

fl. ln u cash register, the colnhinuiiongvjlh an inclosing casing huvins. a key aperture. of a counter within the (as inn. an oscillating collar mounted in lhefkev aperture and formed with a :roove or channel. and turn-to-zero key which operates in said channel.

ill. in it cash register. the combination with :in

inclnsiug mp5 i -m Ib i 1304 hpi cnsing'having a key aperture. of counter having a turn- &

the combination with an ineloslng f t0-zeru shaft, a guard for the key aperture arranged to he moved from its normal position and antomalieally return to the same when released, and a tnrn-to-zero key for displacing the guard from its normal position.

11, In a cash register, the combination with a registerlng mechanism. of an lneloslm, cabinet having-a window therein, a shutter for said window, a lock, and a lever posittvely operated lay said lot-k nected to the shutter. I

12. In a cash register. the combination with a (Bonnier having a turn to zero shaft, of a anal-ding disk for said .shnt'i havimr a slot. a key havinga prujeetion to enter in lltllll direl'lions, and eonsaltl slot, and means for normally holding said dish out ot ha been 14. in a (ash register, the edinllination with an aeenlnn latlng deviee, having; a turn to '/,\t'u shat't, n1 malty (riveting said :lt'lllllilllzlllllg il -\iee.

a shutter not means normally the eomhinalion with an operaI- preventing access to said turn to zero shaft. and means antler lock and key for positively moving said shutter to allow observation of said accumulating deviee and lively moving said lirst-ementioned means to to said turn to zero shaft.

in a cash register. the combination with a ('onnter having" a turn to zero shat't, a spring-artnated disk alined with said shaft, and having" radial slot, :1 turn to Zero key and projt lions t'or rotating sail] shaft, and a projee tion for enterinu said slot out 01' line with the said lirst projeelions.

lti. ln

havina'a lnrn to zero shat't. onnter lnnlily.

of means for moving id and means for preventing the turn lo zero shat't t'rom hein; given more than one rotation. said means anged to he disahled h the bodily movement ol' the eonnter.

In testimony \vhereot' l enee oi two witnesses.

ailix my signature in the pres lliannza'r t. Worm. Fawn PAHKI'IILIAYIS.

a rash register. the eumbinatien with a counter 

